Home / 28,756.89-43,100.35-15,397.04

Finding the Fourth Proportional to 28,756.89, 43,100.35 and 15,397.04

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Solution

The fourth proportional to 28,756.89, 43,100.35 and 15,397.04 is: 23,076.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.89 : 43,100.35 = 15,397.04 : x
  2. Step 2: Convert to fraction form
    28,756.89/43,100.35 = 15,397.04/x
  3. Step 3: Cross multiply
    28,756.89x = 43,100.35 × 15,397.04
  4. Step 4: Simplify right side
    28,756.89x = 663,617,882.22
  5. Step 5: Solve for x
    x = 663,617,882.22/28,756.89
  6. Step 6: Final answer
    x = 23,076.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.